<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<script type="text/javascript">
		/*for(var i=1;i<=15;i++){
			console.log(i);
		}*/
		var student={
			name:'lisi',
			age:20,
			gender:'men',
			address:'xxxxx',
			key:'00'
		}

		console.log(student);
		delete student.name;
		console.log(student);


		/*for(var key in student){
			//console.log(key);
			console.log(student[key]);
		}*/



		/*console.log(student["age"]);

*/
		/*with(student){
			console.log(name);
			console.log(age);
		}*/
		/*console.log(student.name);
		console.log(student.age);
		console.log(student.gender);*/

		/*for(var key in student){
			console.log(key);
			console.log(student[key]);

		}
*/




		/*var i=10;
		do{
			console.log(i);
			i++;
		}while(i<=5)*/

		/*outer:for(var i=0;i<=5;i++){
				console.log("i:",i);
				inner:for(var k=0;k<=5;k++){
					if(k==3){
						//continue outer;
						break outer;
					}
					console.log("k:",k);
				}
		}*/






		/*var a="hello";
		var b=10;
		console.log(!!b);
		console.log(!!(a&&b));*/
		/*
			""-->false
			result:""-->false
	
			a:"hello"-->true
			b:10-->true
			result:10-->true

		*/

		var today='6';
		/*switch(today){
			default:
				alert("hello-放假啦～～～");
				break;
			case "一":
				alert("hello,星期一");
				break;
			case '2':
				alert("hello,星期2");
				break;
			case '3':
				alert("hello,星期3");
				break;
			case '4':
				alert("hello,星期4");
				break;
			case '5':
				alert("hello,星期5");
				break;
			
		}



*/




	</script>
</head>
<body>
	
</body>
</html>